题目详情
题目详情:

[单项选择]嵌入完整硬岩的直径为400mm的钢筋混凝土预制桩,桩端阻力特征值qpa=3000kPa,初步设计时,单桩竖向承载力特征值R应为:()
A. 377kN
B. 480kN
C. 754kN
D. 1508kN

热门试题:

[单选题]下列物质中能发生聚合反应的是(  )
A. 乙烯
B.甲烷
C.乙烷
D.乙醇
[单选题]静压轴承的油膜压力的建立,是依靠( )来保证的。
A.自身旋转
B.外力供油
C.负荷大小
[单项选择]归档的工程档案应当是()。
A. 原件
B. 副本
C. 原件或副本
[单选题]为居家置胃管病人灌注鼻饲液应做到( )。
A.控制液体温度在30℃
B.用清洁纱布过滤自备膳食
C.灌注药物时研碎后核对
D.每次灌注结束将胃管拔出
E.每次灌注后再灌注少许药液确保吸收
[单项选择]下肢静脉曲张,下列哪项是错误的( )
A. 主要发生在下肢浅静脉的大、小隐静脉
B. 静脉壁薄弱和静脉压增高为主要病因
C. 病理改变在静脉壁中层的肌组织和弹力组织
D. 交通支瓣膜机能不全时,应在曲张静脉切除后将交通支结扎切断
E. 曲张静脉内血的含氧量高
[单选题]关于循证医学的实质,以下哪种说法最为恰当
A.以上所有选项
B.循证医学就是进行系统综述和临床试验
C.循证医学就是检索和评估文献
D.循证医学就是临床流行病学
E.循证医学就是基于证据进行实践
[判断题]举行葬礼仪式时,向牺牲人员默哀三分钟。( )
A.正确
B.错误
[多选题]基础电信企业应采用适当方式公开由其向用户收费的全部移动信息服务业务的相关信息,包括移动信息服务企业的名称、( )、客服电话及其他应告知用户的事项,以便用户查询和使用。
A.服务接入代码
B.具体业务名称
C.业务内容
D.资费标准
[单项选择]窦性心动过缓每分钟心率少于
A. 60次
B. 40次
C. 50次
D. 30次
E. 55次
[单项选择]久卧、腹部手术史、产后常发生的疾病是:()
A. 血栓性浅静脉炎
B. 血栓性深静脉炎
C. 游走性浅静脉炎
D. 血栓闭塞性脉管炎
E. 动脉硬化闭塞症
[单项选择]招标人应当按招标公告或者投标邀请书规定的时间、地点出售招标文件或资格预审文件,自招标文件或者资格预审文件出售之日起至停止出售之日止,最短不得少于()个工作日。
A. 3
B. 5
C. 7
D. 10
[判断题]二战后,出现了国家垄断资本主义,所以资本主义的经济性质已经改变。( )
A.正确
B.错误
[判断题]()电梯机房严禁闲杂人员进入。
[单选题]某设施甲苯尾气浓度为20mg/m3,风量为200000m3/h,下列处理方法中合理的是( )。
A.海水法
B.排烟再循环法
C.石灰石/石灰—石膏法
D.低温等离子体法
[单选题]在常见的包装类型中, ( )常用于销售包装,可分为不可折叠和 折叠两种形态。
A.塑料盒
B.金属盒
C.纸盒
D.木盒
[单选题]某项目经理已经完成了WBS和每个工作包的成本估算。要根据这些数据编制项目成本估算,该项目经理要()
A.使用WBS的最高层次进行类比估算
B.计算工作包和风险储备估算的总和
C.把工作包估算累计成为项目估算总和
D.获得专家对项目成本总计划意见
[单选题]APU灭火系统有几个灭火瓶:
A.1
B.2
C.3
D.4
[单选题]( )是指机务、车辆、工务、电务、供电等段专用并由其管理的线路。
A.段管线
B.到发线
C.站线
D.调车线
[判断题] 人力资源服务机构能力指数用英文字母 A 及其数量表示,A等级人力资源服务机构的固定服务场所建筑面积不少于50.m²。( )
A.正确
B.错误
[多项选择]社会主义的根本任务是发展生产力,这是因为,发展生产力是()。
A. 社会主义本质的内在要求
B. 解决社会主要矛盾的要求
C. 提高人民生活水平的要求
D. 巩固社会主义制度的要求
[单项选择]妊娠贫血的诊断标准是
A. 血红蛋白小于120g/L,红细胞压积小于30%
B. 血红蛋白小于80g/L,红细胞压积小于25%
C. 血红蛋白小于100g/L,红细胞压积小于30%
D. 血红蛋白小于110g/L,红细胞压积小于33%
E. 血红蛋白小于60g/L,红细胞压积小于20%
[判断题]javax.swing.Timer类称为计时器线程,计时器的监视器必须是组件类的子类的实例,否则计时器无法启动。 ( )
A.正确
B.错误
[单项选择]正常女性染色体核型为
A. 46,XY
B. 46,XX
C. 23,XX D.44,XX
D. 44,XY
[简答题]拔牙术中发生牙或牙根折断的原因。
[判断题]作业前检查多电源和有自备电源的客户已采取机械或电气联锁等防止短路的强制性技术措施。
A.正确
B.错误
[多项选择]某建筑企业因道路遗撒被北京市朝阳区环保局处以罚款,该企业不服,按照《环境保护法》的规定,该企业可以向( )提起行政复议。
A. 环境保护部
B. 北京市环境保护局
C. 北京市人民政府
D. 朝阳区人民政府
E. 朝阳区环境保护局
[单选题]单位重量气体,通过风机所获得的能量用风机的( )来表示。
A.轴功率;
B.进口风压;
C.全压;
D.出口温升。
[简答题]Electronic or "cyber" warfare holds the promise of destroying an army"s or even a whole nation"s—ability to function without hurting human life. The technology is reaching the point, however, where cyber warfare may be decisive in its own right. (46) In highly centralized military operations, communications and data management have become essential tools linking individual small units and the central command structure. The neutron bomb is one of the most horrid weapons ever devised: It doesn"t damage property; it only kills higher life-forms. (47) Wouldn"t the opposite be wonderful, a device like the robot"s ray in The Day the Earth Stood Still, which melts down weapons but not soldiers Electronic or "cyber" warfare—hacking into an enemy"s computers, jamming radio transmissions, and the like—holds that promise. It can destroy an army"s—or even a whole nation"s—ability to function, but does not hurt human life. The United States has very good electronic warfare capabilities, but has used them only to support conventional military operations. The technology is reaching the point, however, where cyber warfare may be decisive in its own right. (48) Before we imagine what such a "cyberwar" scenario might be like, let"s briefly look at how electronic warfare developed. During the Civil War, operations conducted by the Union army against the Confederate telegraph system foretold modern twentieth-century electronic warfare. Union operatives penetrated Confederate lines to tap into and read military traffic on the Confederate telegraph system. (49) Not only did these operations yield valuable intelligence information, but some operators even began sending bogus messages to sow confusion in the Confederate ranks. Just before World War I, radio communication seemed like a real boon to naval operations because it allowed ship-to-ship and ship-to-shore communications, especially in bad weather. Before this time, flags or light blinkers with limited range provided the only means of communication between ships. Naval ship captains, however, were aware that a sophisticated set of shore-based equipment could locate ships by their radio transmission. By listening to the transmissions, the enemy could ascertain the number and type of ships even if they could not decode actual messages. For this reason, the US Navy was particularly resistant to using radio. However, US military observers aboard British warships soon saw that the tactical advantages of radio outweighed the intelligence losses. Electronic warfare grew rapidly in World War II with the advent of radar. (50) Monitoring radar frequencies allowed spoofing or jamming of enemy radar and led to major units and equipment devoted solely to countermeasures and counter-countermeasures. Gathering intelligence from radio transmissions also increased greatly.
[单项选择]目前,中国有2000多名维和人员参加多项联合国维和行动,在联合国五个常任理事国中是出兵人数最多的国家。作为一个发展中国家,2010年,中国在联合国维和行动中的摊款占近4%,这表明中国()
A. 积极开展以联合国为中心的多边外交
B. 不断加强与发展中国家的友好关系
C. 积极参与地区性国际组织的外交活动
D. 重视多边经济领域合作
[单选题]关于甲公司在其财务报表附注中的应收项目计提减值的表述中,不符合会计准则规定的是(  )。
A.对单项金额重大的应收账款,单独计提坏账
B.对经单项减值测试未发生减值的应收账款,将其包括在具有类似的信用风险特征的金融资产组合中进行减值测试
C.对应收关联方账款,有证据表明其可收回的,不计提减值
D.对应收商业承兑汇票不计提减值,待其转入应收账款后根据应收账款的坏账计提政策计提减值
[填空题]三尖瓣复合体是由( )构成的。
[单项选择]{{B}}第二篇{{/B}}
{{B}}Japanese Car Keeps Watch for Drunk Drivers{{/B}}
A concept car developed by Japanese Company Nissan has a breathalyzer-like detection system and other instruments that could help keep drunk or over-tired drivers off the road.
The car’s sensors check odors inside the car and monitor a driver’s sweat for traces of alcohol. An in-car computer system can issue an alert or even leek up the ignition system if the driver seems over-the-limit. The air odor sensors are fixed firmly and deeply in the driver and passenger seats, while a detector in the gear-shift knob measures perspiration from the driver’s palm.
Other carmakers have developed similar detection systems. For example, Sweden’s Volvo has developed a breathalyzer attached to a car’s seat belt that drivers must blow into before the
A. The same detection system mentioned in the previous paragraph.
B. A breathalyzer attached to a car’s seat belt.
C. A smart car seat belt.
D. An intelligent engine.
[多选题]采油井动态分析的主要内容有( )分析、产油量变化分析、分层动用状况分析、气油比变化分析
A.A、日常生产管理
B.B、抽油泵工作状况
C.C、油井压力变化
D.D、油井含水情况
[单选题]职业资格工作网的系统按照( )层结构进行开发。
A.三层
B.四层
C.五层
D.六层
[判断题]引导接车时,应在列车全部越过后,方机关闭或收回引导信号。( )
A.正确
B.错误
[判断题]电器设备应接地,电线应可靠绝缘并装在蛇皮管内。()
A.正确
B.错误
[填空题]消费者与经营者之间的权益争议,从法律性质上看,属______的范畴。

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